2151541471 has 8 divisors (see below), whose sum is σ = 2310189984. Its totient is φ = 1996458240.

The previous prime is 2151541451. The next prime is 2151541477. The reversal of 2151541471 is 1741451512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2151541471 - 2⁹ = 2151540959 is a prime.

It is a super-3 number, since 3×2151541471³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151541477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890070 + ... + 892483.

It is an arithmetic number, because the mean of its divisors is an integer number (288773748).

Almost surely, 2^2151541471 is an apocalyptic number.

2151541471 is a deficient number, since it is larger than the sum of its proper divisors (158648513).

2151541471 is a wasteful number, since it uses less digits than its factorization.

2151541471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782641.

The product of its digits is 5600, while the sum is 31.

The square root of 2151541471 is about 46384.7116084600. The cubic root of 2151541471 is about 1290.9712596073.

Adding to 2151541471 its reverse (1741451512), we get a palindrome (3892992983).

The spelling of 2151541471 in words is "two billion, one hundred fifty-one million, five hundred forty-one thousand, four hundred seventy-one".